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ERd_PlasticMolecules

Edit 3 …
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What is a reliable way to separate the six different types of plastic containers?
  • A: Separate them by color, with similar colors grouped together
  • B: Separate them by shape, with similar shapes grouped together
  • C: Separate them by density, with similar densities grouped together
  • D: Wait! All of these are effective ways to separate different plastics!

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